| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.jackrabbit.vault.util; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.jackrabbit.vault.fs.api.VaultInputSource; |
| |
| /** |
| * Implements a input source that is based on a {@link File}. The path of the |
| * file is used as systemId. |
| * <p/> |
| * Currently only {@link #getByteStream()} is implemented. |
| * |
| */ |
| public class FileInputSource extends VaultInputSource { |
| |
| /** |
| * the file |
| */ |
| private final File file; |
| |
| /** |
| * possible line feed |
| */ |
| private byte[] lineSeparator; |
| |
| /** |
| * Creates a new input source that is based on a file. |
| * @param file the file. |
| */ |
| public FileInputSource(File file) { |
| super(file.getPath()); |
| this.file = file; |
| } |
| |
| /** |
| * Sets the linefeed to use. If this is not <code>null</code> the output |
| * stream of the file is wrapped by a {@link LineInputStream} with that |
| * given line feed |
| * @param lineSeparator the linefeed for text |
| */ |
| public void setLineSeparator(byte[] lineSeparator) { |
| this.lineSeparator = lineSeparator; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @return a {@link FileInputStream} on the internal file. |
| */ |
| public InputStream getByteStream() { |
| try { |
| if (lineSeparator != null) { |
| return new LineInputStream(new FileInputStream(file), lineSeparator); |
| } else { |
| return FileUtils.openInputStream(file); |
| } |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the content length of the underlying file. |
| * @return the content length of the underlying file. |
| */ |
| public long getContentLength() { |
| return file.length(); |
| } |
| |
| /** |
| * Returns the last modified date of the underlying file. |
| * @return the last modified date of the underlying file. |
| */ |
| public long getLastModified() { |
| return file.lastModified(); |
| } |
| |
| /** |
| * deletes the underlying file |
| */ |
| public void discard() { |
| file.delete(); |
| file.deleteOnExit(); |
| } |
| } |